body{background: papayawhip;}
img{border:none;}
.main{
	width: 96%;margin: 0px auto;
	position: relative;margin-top: 130px;
	min-width: 640px;overflow: hidden;_width:800px;
	max-width: 1200px;
}

.head{
 vertical-align: top;
 background: lightgreen;
 height: 100px;
 width:100%;
 opacity: 0.75;
 filter:alpha(opacity=75);
 padding-top: 15px;position: relative;
 box-shadow: 0px 4px 4px rgba(0,0,0,0.5);
 text-align: center;
 padding-bottom: 10px;
 position: fixed;
 padding:0;
 left:0;
 right:0;
 top:0;
 z-index:999;
}
.logo{
	height: 44px;
	width: 136px;
}
.nav{
	width: 80%;
	text-align: center;	
	margin:auto;
	min-width: 320px;
}
.nav a{
	color: white;
	text-decoration: none;
	margin-left: 11%;
}
.nav a:hover{
	color: black;
}
.font{
	text-align:left;
    font-family:"楷体";
    font-size:1.5em;
    color: seagreen;
	}
